Solar Mole Repellent, Ultrasonic & Solar Powered Gopher Repellent, Waterproof Sonic Groundhog Repeller Rodent Gopher Deterrent Vole Chaser for Lawn, Yard & Garden of Outdoor Use (4 Pack, SQ 1.0)Brand: Jahy2Tech Features: Safe & Easy to Use: Forget the harmful chemicals, poisons, and traps typically used in households, all you need to do is inserting this device into the ground by making a pilot hole and turn it on. This sonic mole repeller stakes is 100% safe because it drives away moles, voles, gophers, groundhogs and other burrowing rodents without using any chemical ways but just an unpleasant sound which is transmitted at regular